Nail-plate feeder



JQP. SHERWOOD.

Nail Plate Feeder.

Patented Aug. 9, 1859.

Inventor:

Witnesses: ZE/WMW N. PETERS. Phntn-Lilhngnphnr, Wishingkm. D. c.

UNITE STATES AEN FTC.

NAIL-PLATE FEEDER.

Specification of Letters Patent No. 25,051, dated August 9, 1859.

a new and useful Improvement in Nail- Plate Feeders; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing, forming part of this specification, in which Figure l is a' longitudinal elevation, partly in section, of a nail-plate feeder with my improvement. Fig. 2 is a plan of the same. Fig. 3 is a rear end elevation of the same. Fig. 4 is a vertical sectional view showing the device for turning the nail-plate holder. Fig. 5 is a View of part of the dis connecting apparatus.

Similar letters of reference indicate corresponding parts in the several figures.

My invention consists in a certain novel system of mechanism applied in combination with the plate-holder for the purpose of producing all the necessary movements of the nail plate.

To enable others to make and use my invention I will proceed to describe its construction and operation.

A, is the framing of the feeder. B, is the carriage which carries the plate-holder having a horizontal reciprocating sliding motion in ways a, a, imparted to it by means of a rod C, connecting it with a rocker C, which derives motion on a stationary pin 6, from an eccentric'cam D, on the main shaft E, of the nail machine, the said rocker being furnished with two rollers c, and (Z, one of which works against the inner surface and the other against the outer surface of a rim 6, which projects laterally from the cam.

P, is a hollow shaft arranged parallel with the ways a, a, in hearings in the carriage B, having rigidly secured to its front end two parallel rods f, f, to which are secured a block to which are secured a pair of guiding jaws h, 71 through which, and through an opening in the block 9, the nailplate I, which is represented in red color, is capable of sliding freely.

F, represents the tongs or nippers which hold the plate I. These are attached to a long rod J, which slides freely through the hollow shaft P, and which has a screw thread cut on its rear portion to fit the divided feed nut K, whose two jaws are fitted to work on a stationary pin 2', for the purpose of opening and closing the nut upon the screw, and are secured, when closed, by a slotted lever L. The rod J, has near the nipper a cross head or disk J, which is fitted to slide between the guide rods f, f, in such a manner as to compel the nippers to turn with the shaft P.

M, M, are ways to support and guide the block g. 7

The shaft P, rods f, f, block g jaws i1, 71, and nippers F, constitute the plate-holder.

N, (Figs 1 and 4), is a stationary inclined plane whose face is equivalent to about one fourth of a revolution of a screw thread arranged concentric with the hollow shaft P.

O, is a tumbler hanging on a fixed pin 7', which is arranged transversely to the shaft P. The edge k, of this tumbler constitutes an inclined plane similar to N, but is set in the opposite direction. The said tumbler has applied to it a spring Z, which acts to force its lower extremity, where the inclined plane k, terminates, into contact with the top of the inclined plane N, as shown in black outline in Fig. 1.

m, m, are two short arms or pins secured to the hollow shaft P, at directly opposite points and standing out radial to the said shaft.

The reciprocating motion of the carriage D, with the plate-holder presents the plate to the cutters to out 01f the nails, and draws it back again after every out. Every time the carriage moves back the pin m, or m, is caused to pass along the edge is, of the tumbler O, and by that means the shaft P, with the other parts of the plate-holder and the plate are caused to make a quarter revolution. WVhen the carriage returns forward the other arm m or m, passes up the stationary inclined plane N, and thus causes the plate-holder and plate to make another quarter of a revolution so that when the plate arrives at the cutters again its position has been completely reversed. The point of the tumbler O, is lifted by the arm m, or m, to let the latter pass as it arrives at the top of the inclined plane N, but as soon as the arm has passed, the tumbler is returned by the spring Z, to its bearing on the inclined plane N, ready for the other arm to run along its face 70, when the carriage next moves back. The turning of the plate-holder in the manner above specified also produces the necessary feed movement of the plate by the action of the screw thread on the rod J, within the nut K.

To provide for the ready disconnection of the carriage B, from the cam D, when it is necessary to stop the operation of the feeder the rod is connected with the carriage by means of a square projection n, (Figs. 2 and 3) at its extremity, said projection entering between a pin p, which is firmly secured on the top of the carriage, and a sliding bolt Q which is fitted to work transversely to the carriage in two guides g, g, on the top thereof. The bolt Q, has a spring 1", applied which holds it against the end of the rod 0, as long as the feeder is desired or required to continue in operation; but when it is necessary to stop the machine the said bolt is withdrawn from contact with the end of the rod C, by the action of the wedge-like extremity of an elbow piece R, (Figs. 2, 8 and with which a projection s, on the top of the bolt is brought in contact by the forward movement of the carriage. The elbow piece R, works on a pin t, which attaches it to a portion of the framing, and its point is raised up too high to interfere with the bolt Q, till it is required to stop the feeder, when it is depressed by the attendant to a position for the head .9, of the bolt to come in contact with it and cause the withdrawal of the bolt from contact with the rod C, by the first forward movement of the carriage, after which the rod is left free to work back and forth without moving the carriage.

What I claim as my invention, and desire to secure by Letters Patent, is

The employment of the stationary inclined plane N, and the tumbler 0, having an inclined face 70, in combination with the arms m, m, of the hollow shaft P, of the plateholder, and with the feed screw and nut, and the driving cam D, or their equivalent; the whole operating together substantially as herein described to produce the several movements specified.

J. P. SHERWOOD. WVitnesses:

JAMES R. GANDAL, B. WV. SHERWOOD. 

